I love these lamps from cb2 (in Chicago) for around $100 so much that I've even emailed them to ask if they'll ship to London. If not, does anyone live in Chicago and want to ship it to me? I don't know what it is about it that makes me want to own one so much, but the clear glass is so pretty, and I think it'd go fantastically with my black couch.
For more info have a look here. Thanks Design*Sponge!